1. Higher Spectrum Efficiency
Benefiting from the TDMA technology, PD660 allows twice the channel spacefrom the same bandwidth. This is a big help to relieve the stress of increasing shortage in spectrum resource.

Compared with analog and FDMA technology, TDMA can increase the battery's duty time by about 40%.

7. Innovative Design

PD660 adopts a patented antenna design. The antenna in the middle provides better signal coverage. The integrated radio and GPS antenna brings more convenience and better performance. Separating two knobs with the antenna can decrease misoperation.